Strange Circular Sand Dunes Discovered on Mars by NASA Spacecraft
Sand dunes of many shapes and sizes are common on Mars. In this example, the dunes are almost perfectly circular, which is unusual. They are…
HiRISE News
Transverse Aeolian Ridges: Blue Ripples on a Red Planet
Mars may be the Red Planet, but false-color images like this one can help us learn about its weather and geology. This High Resolution Imaging…
Breathtaking NASA Photo of Martian Crater Looks Like “Alien Footprint”
Although the photo above isn’t new (it was captured by the High-Resolution Imaging Science Experiment (HiRISE), on the Mars Reconnaissance Orbiter on September 8, 2021),…
Mars Reconnaissance Orbiter Captured Perseverance During Descent to Red Planet
The descent stage holding NASA’s Perseverance rover can be seen falling through the Martian atmosphere, its parachute trailing behind, in this image taken on February…
HiRISE Views Landslides in Mars’ Cerberus Fossae
Cerberus Fossae is a steep-sided set of troughs cutting volcanic plains to the east of Elysium Mons. Steep slopes on Mars have active landslides (also…
HiRISE Spots Sand Dunes Near Nili Patera on Mars
In this image many sand dunes are visible. They have an elongated crescent form and are called “barchan dunes.” They are formed by the continuous…
Spectacular HiRISE View of Martian Sand Dunes in Matara Crater
Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. The flows typically…
Astronomers Make a Shocking Discovery About the Stars Around the Milky Way
An international team of astronomers led by the Max Planck Institute for Astronomy (MPIA) has made a surprising discovery about the birthplace of groups of…
HiRISE Views Snowy Dunes on Mars
This newly released HiRISE image shows snowy dunes on the surface of Mars. It was spring in the Northern hemisphere when this image was taken…
HiRISE Views Mars Curiosity Rover Climbing Mount Sharp
This newly released image from NASA’s Mars Reconnaissance Orbiter shows a view of the Mars Curiosity Rover amid rocky terrain on Mount Sharp. The car-size…
NASA’s Mars Reconnaissance Orbiter Views a Well-Preserved Landslide
This Mars Reconnaissance Orbiter image shows a well-preserved landslide scarp and rocky deposit off the edge of a streamlined mesa in Simud Valles, a giant…
New HiRISE Image – Colorful Impact Ejecta from Hargraves Crater
NASA’s Mars Reconnaissance Orbiter views the colorful impact ejecta from the collision that created Hargraves Crater. The impact ejecta is a rich mix of rock…
Mars Reconnaissance Orbiter Views Seasonal Flows in Valles Marineris
NASA’s High Resolution Imaging Science Experiment captured this new image of seasonal flows on the surface of Mars. Recurring slope lineae are seasonal flows on…
New MRO HiRISE Image Reveals Windblown Sand in Ganges Chasma
This new image from NASA’s Mars Reconnaissance Orbiter reveals dark, windblown sand covering intricate sedimentary rock layers in Ganges Chasma, a canyon in the Valles…
HiRISE Views Secondary Craters in Bas Relief
This new image comes from NASA’s Mars Reconnaissance Orbiter, revealing a region of Mars sprayed with secondary craters from 10-kilometer (6-mile) Zunil Crater to the…
NASA’s Mars Orbiter Views a Small Mesa in Noctis Labyrinthus
The HiRISE instrument on NASA’s Mars Reconnaissance Orbiter has captured a great view of a small mesa on the surface of Mars. In this newly…
New HiRISE Image Views a Hill in the South Polar Region of Mars
This newly released image from the high resolution imaging science experiment (HiRISE) on NASA’s Mars Reconnaissance Orbiter provides astronomers with a closer look at the…
New HiRISE Image Shows a Possible Impact Crater in Icy Terrain
HiRISE continues to provide astronomers with interesting and revealing images of the Martian surface. The latest image is no different. This new image from the…